[Photos:]

BenchmarkLocation View 1Benchmark is within lightened circular area at bottom of photo, with Big Pine Lodge / Ranger Station in background.Location View 2Benchmark is within lighten circular area at bottom of photo with stone lookout tower in background.Location View 3Lookout Tower and Big Pine Lodge / Ranger Station. Benchmark is just behind tower on the right, with step leading up to it.Location View 4Benchmark is not viewable, but withing lightened circular area at top of steps to the right of Lookout Tower.

[Photos:]

Documented History (by the NGS)

01/01/1924 by USGS (MONUMENTED)

01/01/1971 by NGS (GOOD)

DESCRIBED BY NATIONAL GEODETIC SURVEY 1971
AT BIG PINES. AT BIG PINES, AT THE NORTHWEST EDGE OF THE FRONT LAWN OF BIG PINES RANGER STATION, 29 FEET NORTHEAST OF THE CENTER LINE OF STATE HIGHWAY 2, 15.8 FEET WEST OF THE WEST CORNER OF THE HEADQUARTERS BUILDING, 8.9 FEET SOUTHEAST OF THE EAST CORNER OF A MONUMONT, ABOUT 5 FEET HIGHER THAN THE HIGHWAY, AND SET IN THE TOP OF A CONCRETE POST FLUSH WITH THE GROUND. SEC 2, T3N, R8W.

01/01/1971 by NGS (GOOD)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971
RECOVERED IN GOOD CONDITION.

01/01/1977 by NGS (GOOD)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977
RECOVERED IN GOOD CONDITION.

Control Text

The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.

The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in February 1993. * This is a READJUSTED BENCH MARK height. Code A indicates a distribution rate of 0.0 thru 1.0 mm/km. The height was derived from older observations constrained to new heights in a crustal motion area. The height is approximate in relation to other heights in its vicinity.

The geoid height was determined by GEOID99.

The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (G = 980.6199 gals.).